A pronounced shortwave and upper level jet passing over the area along with a coastal trough shifting onshore led to the development of strong to severe thunderstorms during afternoon hours.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CHS wrote it up.
A pronounced shortwave and upper level jet passing over the area along with a coastal trough shifting onshore led to the development of strong to severe thunderstorms during afternoon hours.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before the first event at Aug 24, 12:36 PM EST, 9 minutes earlier.
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</html>The Charleston,SC radar (KCLX), 39 km away, was scanning. The volume nearest the first event began at 17:44 UTC.
3 thunderstorm wind. Local standard time, as filed.
The South Carolina Highway Patrol reported a tree down near the intersection of Highway 321 and Highway 278.
The media reported a tree down near the intersection of Highway 402 and Highway 52.
A NWS employee reported a tree down near the intersection of Highway 17 and Highway 64.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2020Every state in 2020This day in weather historyWarnings in South Carolina, August 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 917813, 917814, 917815.